The success of the iPhone 4S bodes well for the producers of smart phone accessories. The iPhone has sold in staggeringly high volumes since its release in October, sending electronics retailers scrambling to stock their stores with attractive and novel accessories. If you’re participating in the upcoming holiday season, smartphone accessories could make a thoughtful and interesting gift for someone close to you (or to yourself, if you’re feeling greedy). People will be likely react to a new iPhone case or a set of speakers much better than if you gave them a gift card to an electronics store. If you have the iPhone 4S or if you’re planning on purchasing a gift for someone who owns one, I highly recommend any of these six accessories to enhance the experience.